Creeping Thistle - Cirsium arvense

Description

Medium to tall stoloniferous plant, stem usually branched, but not winged or spiny. Leaves lanceolate to oblong, pinnately lobed or unlobed, spiny, the upper leaves unstalked. Flowerheads pale purple or lilac, 15 to 25 mm, fragrant, solitary or from 2 to 5 together, stalked.

Identification difficulty
ID checklist (your specimen should have all of these features)

Lighter pink that most other thistles, and stem not winged, or with very short wings. As with all Cirsium, the pappus-hairs (the silky white hairs attached to the seed - the thistledown) are individually feathery or branched.

ID Guide to Common Thistles

Habitat

Meadows, arable land, roadsides and waste places.

When to see it

June to September.

Life History

Perennial.

UK Status

Very common throughout Britain.

VC55 Status

Very common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 606 of the 617 tetrads.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Creeping Thistle
Species group:
flowering plant
Kingdom:
Plantae
Order:
Asterales
Family:
Asteraceae
Records on NatureSpot:
659
First record:
11/05/1992 (John Mousley;Steve Grover)
Last record:
27/05/2026 (Nicholls, David)

Total records by month

% of records within its species group

10km squares with records

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Latest images

Latest records

Photo of the association

Uroleucon aeneum

The adult Uroleucon aeneum apterae has a body length of  is 3.0 to 4.3 mm. The cauda (tail) in this species is black which helps to identify it.  It is associated with Thistles.

Photo of the association

Large Thistle Aphid

The Large Thistle Aphid (Uroleucon cirsii) is found on Thistles, especially Creeping Thistle. It is between 4 and 5.2 mm in length and has characteristic two tone legs. The cauda (tail) is pale dusky yellow in this species which helps to distinguish it from other thistle feeding aphids.

Photo of the association

Chromatomyia autumnalis

The larva of the Agromyzid fly Chromatomyia autumnalis mines the leaves of various thistles such as Creeping Thistle and also some knapweeds. The mine is full depth, greenish, usually linear. It is usually upper surface and doubles back on itself. The pupa is metallic black and the anterior spiracles protrude through the lower epidermis. The mine can only be separated from that of Chromatomyia spinaciae by examining the puparium. The puparium of Chromatomyia spinaciae is white whereas Chromatomyia autumnalis is black.

Photo of the association

Chromatomyia spinaciae

The larvae of the fly Chromatomyia spinaciae form long narrow greenish mines in the leaves of various thistles, and also in the leaves of Knapweed and Perennial Cornflower. The puparium is white and forms at the end of the mine, underneath the leaf. The frass grains are large and scattered.  The leafmine of this species is identical to that of Chromatomyia autumnalis and can only be separated by the puparium features. The puparium of Chromatomyia spinaciae is white whereas that of Phytomyza autumnalis is black.

Photo of the association

Phytomyza cirsii

The larva of the Agromyzid fly Phytomyza cirsii mines the leaves of various thistles (Cirsium) including Creeping Thistle and Spear Thistle, creating a long whitish upper surface mine. The frass grains are small and usually occur close together. Pupation is outside the mine.  There are other very similar mines on these host species and care is needed when identifying the causer.

Photo of the association

Thistle Gall Fly

The larva of the Thistle Gall Fly (Urophora cardui) causes distinctive swollen stem galls on Creeping Thistle.  These are green and fleshy to begin with, and persist on old stems.   Several chambers are inside.  Adults fly in June, laying eggs on the thistle.  The larvae hatch and crawl down into the stem, causing the gall. 

Photo of the association

Creeping Thistle Rust

This rust causes galls on Creeping Thistle, and the whole plant appears stunted.  There is no host alternation.  Sickly-smelling yellow spermogonia are followed by brown aecia covering the leaf underside; light brown uredinia and darker brown telia are present later.